What is the value of fraction 1 over 2x3 + 5.2y when x = 2 and y = 3?

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal